Cook tortellini 1 minute short of package time. Drain and toss with a little olive oil.
Pat steak cubes dry and season with salt, pepper, paprika, and Italian seasoning.
Sear steak in batches in butter and olive oil over high heat, 1.5 to 2 minutes per side. Transfer to a plate.
Cook crushed garlic in remaining butter over medium for 2 to 3 minutes until golden.
Deglaze with beef broth, scrape the fond, and reduce by half.
Add cream, Worcestershire, and Dijon. Simmer over medium-low for 3 to 4 minutes until thickened.
Add Parmesan in two additions off the heat until smooth.
Fold in tortellini and steak bites. Warm 1 minute over low. Finish with parsley and serve.